Background The worldwide increase in the prevalence of asthma has made it a major public‐
health concern. We aimed to identify the prevalence of asthma and asthma symptoms in …

Objectives Asthma is a chronic inflammatory airway disease characterized by reversible
airway constriction and airway hyperresponsiveness. Asthma is a worldwide problem and its …

Objective: Although there is evidence of worldwide variation in the prevalence of asthma, the
prevalence of asthma in adult populations in Iran is not known. Methods: We studied the …

Background Health information on the dimensions of asthma and allergic conditions in
Khuzestan Province, as a major industrial and polluted area in Iran as and the Middle East …

Background Asthma is a common chronic respiratory disease leading to morbidity, mortality
and impaired quality of life worldwide. Information on asthma prevalence in the Middle East …

Background. In our clinical experience, asthma is an important health problem in our region,
but we did not know its prevalence. Objective. The main objective of our study was to assess …

Background No national research has yet explored the prevalence of asthma among adults
in Lebanon. This study aims to evaluate the prevalence of physician-diagnosed asthma and …

Objectives: To investigate asthma prevalence and to measure asthma symptoms among
Saudi adults in Riyadh, Kingdom of Saudi Arabia. Methods: A cross-sectional survey using …

Background The actual prevalence of paediatric asthma as a worldwide chronic disease has
been surveyed in developed countries. However, no sufficient survey has been conducted in …

Background: Evidence indicates that the prevalence of asthma tends to increase in the
developed world. However, little is known about current prevalence rates and risk factors of …